Filtering apparatus.



C. S. SMITH.

FILTERENG APPARATUS,

APPLmATIoN FILED MAY is. 1914. RENEWED um. 10.1918.

M9127@ M99 memedmg.2o,191&

A J. nml/we, nto/a mbox y .ppliention tiled. May i8, 19112:, Serial No. 't.

lle it known that. l, CAROLYN S. SMITH., a citizen ot the United tiitates, and a resi- (lent ot' the borough of Brooklyn., county or Kings. rity 'and ttatn of Nvu' York, have invented curtain new and useful 'improvements in Filtering Apparatus, of which the following" is a sprritieation acconipaniecl by drawings.

This invention relates to filtering appuratus 'for filtering watrr under pressure an the primar)v objects of the invention are to inni-ense the degree ot' purity of the Water by setting up galvanie action therein by ini proved means. l' (lopend not. only upon thel torni ot transverse partitions in the tank, hut also upon the character ot' this inter-y mediate tllling material between the partitions. which is capable of setting; up `galvnnic 4action in nflclitiou to that up hy the couples forming the transverse partitions. i-

The invention is shown in one its proferrud torins in the nnennipanying drawings, in Whirh-- Figure 1 is a vertical sectional View;

Fig. 2 is u detail perspective View of a portion ot' one ll'orin of partition; anni purified water,

Fig. 3 is n sectional View of another orin of partition.

Referring to the drawings, il represnnts a tanlt, having the top ll and bottoni, C, loe-- tween which are the sections il). providefl with flanges lll secured together hy bolts l". so that the complete tank A muy eonpriss as many sections as rlesirerl.

The top is provicled with the outlet G for and inlet H tor elsning purposes. rThe bottom is provided 'with the inlet. .l for waiter7 adapted to he attached to u house system, and is ulso prorilstl with the outlet, l for cleaning; purposes.,

Each section 'D is preferably provielotl with a rlnm-hole l.; in its'sitle for @leuning purposes und for facilitating the oleoingj the intermediate filling mnterial hetuesn the partitions.

The partitions M are preferably for-ined of two pertorutetl trays of different, metals7 such as brass and aluminum, limi i.) El' placed @alge to eclgn., so that muy torni gelvanie couples. Senurfitors muy 'a i 'I laced between the es shown i; @retail in lig. 52. lli? clesirocl, the partitions referred. to may he eonstruetenl as shown in l?" il, in

@pacification of Letters Patent.

runurerse partitions which one tra;Y M is placed in Contact with a perforated sheet The partitions4 (i whirh are located at rho meeting' parts of thv filter .sections preferably rompi-iso the trays M? and layers of wire :nosh Cloth il held between the flanges ot the sections and forming galvauic eouplr-s. although the partitions Qcould be. it desired.. constructed like thaty shown in Fig. 3.

'lhe upper section l) .may have first a perforated tiny tl conraining porous material suoli as a composition of salts ot' iron and .sodium and. other beneficial salts.

The intermediate filling between the partitionsl is prrtrrablycomposed of various combinations of materials which are capable of setting up galvanie action. such as a ininfturo. oli rnrhon. ain/.l innly divided aluminum. rl`he aluminum may he in the torni of punchiugs. anti intrrmizted with the. carbon as shown in this layers T. The lnjfer lw unifi' he composed oi this saine mixture. with the ndliition olf lint. l

The intermediate filling may, it' alesire'fl, he torinell ot' alternate layrrs o'l" materials which will set up gnlrnnie action. such as layers ot' cai-hon and aluminum punehings. shown nt. V? or else perforated sheets ot aluininuin or othrr suitable inet-al may he nii-ranged between layers of carbon as shown aty Vl". The lower section is preferably pro- 'vided with n layer ol1 carbon alone as shown at X.

The layers o: intermediate lling between tho transverse partitions M aml Q; may all be eonstrueterl alike. or may all he clitlerent, in accordance with the above specification. @no suitable arrangement, however, that.

lshown in 'the drawings.y but this arr-ungenient inni' be changed. (lesireal.

y tilt-@ring a'iparntus' is intenrflefl, us stated, to he useil in conjunction with Water under prnusiire, hy Whieh means the hust. results nre olotninecl, is @specially dei able lin euiistruetion et the tilteringg apparatus that i'neuns he prnvitled as described Jor enabling 'pm-'tions of thev iltering material to he removed and replaced at will. Without tnlrinfg apart the entire filter. ift. hns been found. that; the metal exemplified hy alurninuni has to he more often replaced than the other materials nnrl 'provision is made ttor this purpose. The combination of the Whieh. forni galvunie couples and the filling material between the partitions which is capable of setting up galvanic action keeps up the galvanic action throughout the entire filter beds.

I claim and desire to obtain by Letters Patent the following:

l. In filtering apparatus, the combination with a tank, of transverse partitions forming galvanic couples, intermediate filtering media consisting of carbon and a finely divided metal capable of' setting up electrolytic action in the water, and means for forcing water under pressure through Said filtering media, whereby the filtration takes place in the presence of' upward percolation, pressure and elcctrolytic action, and the residue descends to the bottom of the tank.

2. In filtering apparatus, the combination with a tank, of transverse partitions forming galvanic couples, intermediate filtering mediaV consisting ot' carbon and aluminum capable of setting up electrolytic action in the Wat-er. and means for forcing water under pressure through said filtering media, whereby the filtration takes place 1n the presence of upward percolation, pressure,

and electrolytic action, andthe residue descends to the bottom of the tank.

3. In filtering apparatus. thel combination with a tank. .of transverse partitions forining g: lvanic couples. intermediate filtering media composed of' materials capable of set.- ting up eleetrolytic action in the water. and means 'lor forcing water under pressure upwardly through said filtering media. whereli)v the filtration takes place in the presence ol upward percolation. pressure, and eleetrolrtic action. and the residue descends to .the bottom of the tank.

In testimoni' whereof I have signed this specification in the presence of' two Subscribing witnesses.

CARULYN S. SMITH.

IVitnesses A. (l. PARHAM', K. G. LE ARD. 

